// User.js
import React, { useState, useEffect } from 'react';
import Web3 from 'web3';
import { useParams, Link } from 'react-router-dom';
// import '../static/css/app.css';
// // 导入 CSS 文件
// import '../static/assets/bootstrap/css/bootstrap.min.css';
// import '../static/assets/fonts/ionicons.min.css';
// import '../static/assets/css/pikaday.min.css';
import ActivityListABI from '../contract/ABIs/ActivityList.json'; // 活动列表合约 ABI
import MaterialListABI from '../contract/ABIs/MaterialList.json'; // 材料列表合约 ABI
import UserListABI from '../contract/ABIs/UserList.json'; // 用户列表合约 ABI 
import UserABI from '../contract/ABIs/User.json'; // 用户合约 ABI

import ActivityListAddress from '../contract/ADDRESSes/ActivityListAddress.js'; // 活动列表合约地址
import MaterialListAddress from '../contract/ADDRESSes/MaterialListAddress.js'; // 材料列表合约地址
import UserListAddress from '../contract/ADDRESSes/UserListAddress'; // 用户列表合约地址
import UserNavBar from './nav/UserNavBar.js';
// import '../static/indexcss/aacsss.css';
import gb from '../static/bootstrap/images/gb.svg';
import us from '../static/bootstrap/images/us.svg';
import user3 from '../static/bootstrap/images/user3.png';
import Head from './nav/Head.js';

const User = () => {
    const [web3, setWeb3] = useState(null);
    // 使用 useParams 获取路由参数中的地址信息
    const { address } = useParams();
    const [contractActivityList, setcontractActivityList] = useState(null);
    const [contractMaterialList, setcontractMaterialList] = useState(null);
    const [contractUserList, setContractUserList] = useState(null);
    const [contractUser, setcontractUser] = useState(null);
    const [isUser, setisUser] = useState(false);


    useEffect(() => {
        async function init() {
            // 连接到以太坊网络
            if (window.ethereum) {
                const web3Instance = new Web3(window.ethereum);
                try {
                    // 请求用户授权
                    await window.ethereum.enable();
                    setWeb3(web3Instance);

                    // 创建活动列表合约实例
                    const activityListInstance = new web3Instance.eth.Contract(
                        ActivityListABI,
                        ActivityListAddress
                    );
                    setcontractActivityList(activityListInstance);

                    // 创建材料列表合约实例
                    const materialListInstance = new web3Instance.eth.Contract(
                        MaterialListABI,
                        MaterialListAddress
                    );
                    setcontractMaterialList(materialListInstance);

                    // 创建用户列表合约实例
                    const userListInstance = new web3Instance.eth.Contract(
                        UserListABI,
                        UserListAddress
                    );
                    setContractUserList(userListInstance);

                    // 创建用户合约实例
                    const userInstance = new web3Instance.eth.Contract(
                        UserABI,
                        address
                    );
                    setcontractUser(userInstance);

                    // 获取当前用户的以太坊账户地址
                    const accounts = await web3Instance.eth.getAccounts();
                    const currentAddress = accounts[0];
                    // 获取用户合约的 owner 地址
                    const ownerAddress = await userInstance.methods.getUserAddr().call();
                    // 检查当前账户是否是用户本人
                    setisUser(currentAddress === ownerAddress);
                } catch (error) {
                    console.error(error);
                }
            } else {
                console.error('请安装以太坊浏览器插件，如 MetaMask');
            }
        }
        init();
    }, [address]);


    // 用户查询积分函数
    const UserPoints = async () => {
        if (contractUser) {
            try {
                // 获取当前用户的以太坊账户地址
                const accounts = await web3.eth.getAccounts();
                const fromAddress = accounts[0];
                console.log("fromAddress:", fromAddress);
                const result = await contractUser.methods.getPoint().call({ from: fromAddress });
                alert("用户个人积分为：" + result)
                // 更新用户积分状态 
                // setUserPoints(userPoints);
                // console.log("userPoints:", userPoints);
            } catch (error) {
                console.error(error);
                alert('用户查询失败！');
            }
        };
    }


    return (
        <div>
            {/* 如果当前账户不是用户，则显示提示信息 */}
            {!isUser && (<div>您没有权限访问此页面。</div>)}

            {/* 用户界面 */}
            {isUser && (
                <div className="page-wrapper">
                    <div className="main-container">
                        <UserNavBar address={address} />

                        <div className="app-container">
                            <Head></Head>
                            <div className="app-body">
                                <div className="container-fluid">

                                    <div>
                                        <main className="page hire-me-page">
                                            <section className="portfolio-block hire-me">


                                                <div className="container">
                                                    <div className="border rounded border-0 shadow-lg p-3 p-md-5"
                                                        data-bs-theme="light"
                                                        style={{
                                                            backgroundColor: 'rgba(36, 36, 41, 0.6)'
                                                        }}
                                                    >
                                                        <div className="mb-3">
                                                            <h2>查询积分</h2>
                                                            <div className="mb-3 mt-4">
                                                                <button className="btn btn-primary btn-lg d-block w-100" onClick={UserPoints}>查询</button>
                                                            </div>
                                                        </div>
                                                    </div>
                                                </div>

                                            </section>

                                        </main>
                                    </div>


                                </div>
                            </div>
                            <div className="app-footer">
                                <span>
                                    © Bootstrap Gallery 2023
                                </span>
                            </div>
                        </div>
                    </div>

                </div>
            )}
        </div>
    );
}

export default User;
